(19)

(11)

EP 1 506 245 A1

(12)

(43) Date of publication: 16.02.2005 Bulletin 2005/07 (21) Application number: 03735464.4 (22) Date of filing: 22.05.2003

(51) International Patent Classification (IPC)7: C08G 18/63 (86) International application number: PCT/EP2003/005503 (87) International publication number: WO 2003/097712 (27.11.2003 Gazette 2003/48)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 22.05.2002 EP 02253584 (71) Applicant: SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V. 2596 HR Den Haag (NL)	(72) Inventors: HEINIS, Bob NL-1031 CM Amsterdam (NL) KARZIJN, Willem NL-1031 CM Amsterdam (NL) KRIJGER, Martien NL-1031 CM Amsterdam (NL) LELIEVELD, Martinus, JOhannes, Maria NL-1031 CM Amsterdam (NL)